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Finding the Fourth Proportional to 268,792.78, 370,933.94 and 155,613.10

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Solution

The fourth proportional to 268,792.78, 370,933.94 and 155,613.10 is: 214,746.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,792.78 : 370,933.94 = 155,613.10 : x
  2. Step 2: Convert to fraction form
    268,792.78/370,933.94 = 155,613.10/x
  3. Step 3: Cross multiply
    268,792.78x = 370,933.94 × 155,613.10
  4. Step 4: Simplify right side
    268,792.78x = 57,722,180,298.61
  5. Step 5: Solve for x
    x = 57,722,180,298.61/268,792.78
  6. Step 6: Final answer
    x = 214,746.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.